[PATCH v2] drm/amd/display: Hook up drm interface for DP 1.4 edid corruption test

[Jerry (Fangzhi) Zuo]

-v3: Rename to avoid confusion

Signed-off-by: Jerry (Fangzhi) Zuo <jerry....@amd.com>
---
 .../drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c  | 35 +++++-----------------
 1 file changed, 7 insertions(+), 28 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
index 11e5784aa62a..927fdac77b6f 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c
@@ -575,6 +575,7 @@ enum dc_edid_status dm_helpers_read_local_edid(
                struct dc_sink *sink)
 {
        struct amdgpu_dm_connector *aconnector = link->priv;
+       struct drm_connector *connector = &aconnector->base;
        struct i2c_adapter *ddc;
        int retry = 3;
        enum dc_edid_status edid_status;
@@ -592,6 +593,12 @@ enum dc_edid_status dm_helpers_read_local_edid(
 
                edid = drm_get_edid(&aconnector->base, ddc);
 
+               if (link->aux_mode && connector->edid_corrupt)
+                       
drm_dp_send_real_edid_checksum(&aconnector->dm_dp_aux.aux, 
connector->real_edid_checksum);
+
+               if (!edid && connector->edid_corrupt)
+                       return EDID_BAD_CHECKSUM;
+
                if (!edid)
                        return EDID_NO_RESPONSE;
 
@@ -612,34 +619,6 @@ enum dc_edid_status dm_helpers_read_local_edid(
                DRM_ERROR("EDID err: %d, on connector: %s",
                                edid_status,
                                aconnector->base.name);
-       if (link->aux_mode) {
-               union test_request test_request = { {0} };
-               union test_response test_response = { {0} };
-
-               dm_helpers_dp_read_dpcd(ctx,
-                                       link,
-                                       DP_TEST_REQUEST,
-                                       &test_request.raw,
-                                       sizeof(union test_request));
-
-               if (!test_request.bits.EDID_READ)
-                       return edid_status;
-
-               test_response.bits.EDID_CHECKSUM_WRITE = 1;
-
-               dm_helpers_dp_write_dpcd(ctx,
-                                       link,
-                                       DP_TEST_EDID_CHECKSUM,
-                                       
&sink->dc_edid.raw_edid[sink->dc_edid.length-1],
-                                       1);
-
-               dm_helpers_dp_write_dpcd(ctx,
-                                       link,
-                                       DP_TEST_RESPONSE,
-                                       &test_response.raw,
-                                       sizeof(test_response));
-
-       }
 
        return edid_status;
 }
-- 
2.14.1

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